Sink connection for waste disposal apparatus



1958 T. T. WOODSON 2,819,915

smx CONNECTION FOR WASTE DISPOSAL APPARATUS Filed Nov. 19, 1956 INVENTOR. THOMAS T. woovsow VBY HIS ATTORNEY United spaced circumferentially extending ledge members 8 fixedly secured, as by spot welding for example, to the external atent U -surface' of sleeve 5andarranged to-cooperate with arsupport ring 9 includinga plurality of upwardly extending 2,819,915 portions -10 each provided with a circumferentially extend- -ing rim 11 spaced so as to lie in one of the spaces bejgg g gg 5 tween ledge members 8. Each 'Of rims '11 is engageable -with one of ledge members 8' when support ring-9'is rotated *kThomas T. Wo ods0n, La Canada, Qa'lifi, assignor to -away'frorn' the position in which-finger portionsilfl'ofithe & GenemltElefitrlclcomllallyraicol'pol'afloll of New Yfll'k support-ring liebetweenledge members 3. ,In the'present licafimNovember 191.956 S Nohfizs 13 embodiment I- have-i utrl1 zed*-threeyledge members 8 maL 10--and three upwardlyextendingfinger portions "'10 carrying i- 3 Claims. -(Cl'.i285-159) -rimportions'1-1, each"of the 1edge-members8 andrirnporqtions 111 having -a "circumferential extentof slightly'less than 60 degrees. ---Support-ring9also includesa bottom flangeiillz pronv I 1 fi f ii gfiggfifi gl 2 x33? ggffgggggigglggi: 15 ecting-outwardly therefrom'and adaptedto interlock with into a b g g a {E to be acircumferentialresilient "gasket'13 encircling lower'end "mounted below a'sink drain b all h a of'sleeve 5. Gasketlfi is generally rectangular in cross picalobject the provision of an g' d --section,"andincludes: an L-shaped slot thereinto accomvimgeinent fbnsecuning suchppramsio i i zd-rnodateflange fm and the-lowermostportion of=suPl 0rt Furtherrobjectstandadvantagesoftheinvention willtbe- 5, it f ffififig fi ji 2133i? 1 533335 ;I}? q b 1. V g

will be pointed .out. ,withparticularity. in .the.,,claims ang2 gg ggil i g zfigrgfig y g bblh D a p K g 9 :2 5;zi i g fi gi zgfi gigfifg tggi sgk my The arrangement described thus far is suflicient to supj 1 port waste disposer 2 onsink 1 inasmuch. as toptflan e .Y ni l" provlde i disposer t a hqusmg --6=of sleeve5-'overlies the'marginal edge of theisink drain l i l uppgr 131st g 2 mp osed m the opening support 'r n 9 is supported on sleeve 'fi because rainopenmgan ta apte -to supportt e ousing, spaced ,5? l f circumferentiallyextending ledge members on the external Z111?fitfig ifii l iiliiiit ii fe ili surface'ipftthasleeve a upportlng nng secured to i ported-on-lbwer flange 12-01 upp'ortingring'9f. To com- I aste tdlsppsenand provided l upwardly "exlendmg plete the mounting structure "I provid a 'clarnpring 15 V A a h t- A 3 I j It i 1; 5 5353 e Waste 15p oser 1s rotated ve'rtically arranged and threaded gin openingsjtherein so b'ettr 1m derstan dingofv this. invenficm reference aste bearfigainstsink 1. lretterably a sealing'ringils 0 a 'E gg g l gzg z g elevation View insection of a -tofacilitateassembly of the entire mounting structure I e b V t n "I n I. a f ,8 :vaste. 'dkposerconstructed inaccordance- .with my tinven- 3; Ziggggfiggggglijg; s igg iii gg figgif g gg 1011. g a"pro ect1ngp1n"20on its top "surface andtan openi ng in g con'smlcfi'n 0 -may be supported-thereon;prior'to'assembly. To insure a=positiveseal*betweensleeveS and-housing 3;1the.annug fgitg t g i vlewofthesmlcture l--lar portionof gasket l3f'lyingbetween' sleeve 5 and suprt-ring-9"may-be compressedby'means ofa compression Referring to thedrawmg,..the.numera1 1;des1gnates;the F 0 d 1 I bottom wall of a kitchen sink having a drain openin E i- 21 enbaoed by prolectmg portions) 16 of damp belownwhich waste disposerl2 may;-be supported. Waste t p I dlilsposer Zjncludes a housing enclosing a comminuting m the b9ttom of which gnndmg mechanism l4-are-assernbled a'sillustrated in Fig. l 'and secured to =4 notishownlis provided. 'A-tubular-sleeve-member-5 is housing 3lbyhmeanst-oflscrews 14a ring w g s the smk 43 opening so as to support .housmg screws 17, seal ring 18 and washer 19 in place is then g gg g ig ig gz i gjz i z gj g is and located in its proper position encircling support ring 9, c0 F it being observed that at this point all of the components v1 ed with a drainage chamber connected to a drain line of the mounting Structure with the tion of sleeve 5 adapted to be connected to a plumbing system, but inare supported on housing3 up 3:23:2 i i gg i f gi iggi g the Actually of course, the assembly operations thus far h e o f a described may be performed in the factory before the i 2 g g they are not descnbed waste disposer is packaged and the arrangement of these ta erein. e upper i et opening defined by sleeve i a t d 5 by 122 (not shown) which may be of the type adapted to seat on G5 is Sup ed with the Waste dis Oser and it b t flange 6 at the upper end of sleeve 5, or on a seat 7 prop 6 jecting inwardly from the bottom of sleeve 5 if it is de- POFMY posltlolled plac e as generally shown In 1 sired that the stopper not project above the bottom wall prior to packagmfg and shlpfnent m the P f the Sink When waste disposer 2 1s to be installed in a custo- In accordance with my invention I provide a plurality of mefs home, drain Sleeve 5 is removed from the assembly by rotating it so as to disengage ledges 8 and rims 11 and is then mounted in the drain opening of sink 1, a

a ring of putty ordinarily being utilized to seal the space between the bottom of flange 6 and the top surface of the marginal edge of the sink surrounding the drain opening. Waste disposer 2, with all of the parts assembled as described above is first positioned on the floor directly below the drain opening so that it may be lifted into mounting position, preferably by means of a lifting tool (not shown) having a long handle extending through the drain opening and means extending through the inlet opening of housing 3 so as to engage the inner walls thereof. The entire assembly is then raised upwardly finger portions 10 of support ring 9 spaced between ledge members 8, until circumferential rims 11 are higher than the top surfaces of ledge members 8, after which the entire unit is rotated approximately 60 degrees so that rims 11 engage ledge members 8. The waste disposer, including sleeve member is then rotated to a position in which the drain outlet may be connected to the plumbing system it being noted that it no longer need be supported manually. Assembly is completed by turning screws 17 upwardly so that they clamp seal ring 18 and sealing gasket 19 against the bottom wall of the sink and also clamp portion 16 of clamp ring 15 downwardly against support ring 9. By this means a substantially rigid mounting structure is secured, and also gasket 13 is expanded slightly by compression ring 21 so as to seal the space between sleeve 5, support ring 9 and the portion of housing 3 which surrounds the inlet opening to grinding chamber 4.

While I have shown and described a particular embodiment of my invention, I do not desire the invention to be limited to the particular construction disclosed, and I intend by the appended claims to cover all modifications within the true spirit and scope of my invention.

I claim as my invention:

1. Waste disposal apparatus for use in connection with a sink having a drain opening comprising a housing enclosing a grinding chamber having an inlet opening for water and waste material at the top thereof, a cylindrical sleeve adapted to be disposed in said drain opening including an outwardly projecting flange on the upper end thereof adapted to overlie the marginal edge of said drain opening, a plurality of circumferentially extending ledge members on the external surface of said sleeve, a support ring secured to the top of said housing and adapted to encircle said sleeve, said support ring including a plurality of circumferentially spaced upwardly extending portions each provided with a circumferentially extending inturned rim, a circumferential resilient gasket encircling the lower end of said sleeve, said support ring also including a flange on its lower end adapted to interlock with said gasket, and means for securing said gasket to said housing.

2. Waste disposal apparatus for use in connection with a sink having a drain opening comprising a housing enclosing a grinding chamber having an inlet opening for water and waste material at the top thereof, a cylindrical sleeve adapted to be disposed in said drain opening including an outwardly projecting flange on the upper end thereof adapted to overlie the marginal edge of said drain opening, a plurality of circumferentially spaced circumferentially extending ledge members on the external surface of said sleeve, a support ring secured to the top of said housing and adapted to encircle said sleeve, said support ring including a plurality of circumferentially spaced upwardly extending portions each provided with a circumferentially extending inturned rim, a circumferential resilient gasket encircling the lower end of said sleeve, said support ring also including a flange on its lower end adapted to interlock with said gasket, said gasket including a circumferential portion interposed between said support ring and said sleeve so as to seal the joint between said sleeve and said housing, means for securing said gasket to said housing, means for clamping said sleeve in engagement with said sink and said rims in engagement with said ledges, and means associated with said clamping means for compressing said interposed portion of said gasket.

3. Waste disposal apparatus for use in connection with a sink having a drain opening comprising a housing enclosing a grinding chamber having an inlet opening for water and waste material at the top thereof, a cylindrical sleeve adapted to be disposed in said drain opening including an outwardly projecting flange on the upper end thereof adapted to overlie the marginal edge of said drain opening, a plurality of circumferentially extending ledge members on the external surface of said sleeve, a circumferential resilient gasket encircling the lower end of said sleeve, a support ring encircling said sleeve and including an outwardly projecting bottom flange in interlocking engagement with said gasket, an annular coupling member secured by removable fastening means to said housing so as to overlie said bottom flange and clamp said gasket to said housing, said support ring including a plurality of circumferentially spaced upwardly extending portions each provided with a circumferentially extending inturned rim, each of said rims being in engagement with one of said ledge members so as to support said housing on said sleeve, a clamp ring encircling said sleeve, said clamp ring including inwardly projecting portions overlying portions of said gasket between said support ring and said sleeve, a compression ring encircling said sleeve between said inwardly projecting portions of said clamp ring and said portions of said gasket, a sealing ring encircling said sleeve above said clamping ring below said upper flange, a plurality of screws threaded in said clamping ring and adapted to bear against said sealing ring, and connecting means for securing said sealing ring on the upper ends of said screws.

References Cited in the file of this patent UNITED STATES PATENTS 2,477,686 Coss Aug. 2, 1949 

